oalib
Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
cis-Bis[(1-adamantylmethyl)amine-κN]dichloridoplatinum(II) N,N-dimethylformamide solvate
Fernande D. Rochon,Christian Tessier
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809037982
Abstract: The asymmetric unit of the title compound {systematic name: cis-dichloridobis[(3,7-dimethylbicyclo[3.3.1]non-1-ylmethyl)amine-κN]platinum(II) N,N-dimethylformamide solvate}, [PtCl2(C11H19N)2]·C3H7NO, consists of two metrically similar Pt complexes and two dimethylformamide solvent molecules. Each PtII center is coordinated by the amine groups of two (1-adamantylmethyl)amine ligands and two Cl atoms in a cis-square-planar arrangement. The PtII centers lie slightly outside [0.031 (4) and 0.038 (4) ] the coordination planes. The N—Pt—N and Cl—Pt—Cl angles [92.1 (4)–92.30 (11)°] are slightly more open than the N—Pt—Cl angles [87.3 (3)–88.3 (3)°]. N—H...O and N—H...Cl intermolecular hydrogen bonds are observed, forming two discrete pairs of complexes and solvent molecules.
(Dimethylformamide)(2-methylpropenoato)[tris(1-methyl-1H-benzimidazol-2-ylmethyl)amine]manganese(II) perchlorate dimethylformamide solvate
Huilu Wu,Fei Jia,Jin Kong,Fan Kou
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810036457
Abstract: In the title complex, [Mn(C4H5O2)(C27H27N7)(C3H7NO)]ClO4·C3H7NO, the MnII ion is seven-coordinated in a distorted monocapped trigonal-prismatic geometry formed by a tetradentate tris(1-methyl-1H-benzimidazol-2-ylmethyl)amine molecule, a bidentate 2-methacrylate anion and a dimethylformamide molecule. The methyl groups of the coordinated dimethylformamide molecule and the perchlorate anions are disordered over two positions with occupancy factors of 0.640 (8) and 0.360 (8).
Acetoguanamine N,N-dimethylformamide solvate
Gustavo Portalone
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808023842
Abstract: The structure of acetoguanamine (or 2,4-diamino-6-methyl-1,3,5-triazine) has been determined as the N,N-dimethylformamide solvate, C4H7N5·C3H7NO. The molecular components are associated in the crystal structure to form ribbons stabilized by three N—H...N and one N—H...O hydrogen bonds which involve NH groups as donors and the N atoms of the heterocyclic ring and the carbonyl O atom of the solvent as acceptors.
Cyclo(l-tyrosyl-l-tryptophanyl) dimethylformamide solvate  [cached]
Carl Henrik G?rbitz,Lars Male Hartviksen
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808000640
Abstract: The structure of the title compound [systematic name: (3S,6S)-3-(4-hydroxybenzyl)-6-(1H-indol-3-ylmethyl)piperazine-2,5-dione dimethylformamide solvate], C20H19N3O3·C3H7NO, contains hydrogen-bonded tapes typical for diketopiperazines. The structure is stabilized by strong intermolecular interactions of the types O—H...O and N—H...O involving the dipeptide and the solvent molecules. The absolute configuration was known from the starting materials.
1-(2,6-Dichlorobenzoyl)-3-(3-nitrophenyl)thiourea dimethylformamide solvate  [cached]
Min Li,Dongxiao Hou
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536809055056
Abstract: In the title compound, C14H9Cl2N3O3S·C3H7NO, the two aromatic rings enclose a dihedral angle of 32.93 (12)°. The thiourea molecule exists in its thione form in the solid state with typical C=S and C—N bond lengths. In the crystal, N—H...O hydrogen bonds exist between the thiourea and carbonyl groups on the same and neighboring molecules. In addition, each dimethylformamide solvate molecule forms a hydrogen bond to one N atom of the thiourea group.
2,2′-(Biphenyl-4,4′-diyldioxy)diacetic acid N,N-dimethylformamide solvate  [cached]
Yu-Juan Cao
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809025914
Abstract: In the crystal struture of the title compound, C16H14O6·C3H7NO, the two crystallographically independent benzene rings are coplanar [dihedral angle = 1.00 (2)°]. The crystal structure is stabilized by O—H...O hydrogen bonds between the diacid and the solvate dimethylformamide molecule, resulting in the formation of a zigzag chain structure extending parallel to [001].
(E)-4-Hydroxy-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide N,N-dimethylformamide solvate
Nooraziah Mohd Lair,Hapipah Mohd Ali,Seik Weng Ng
Acta Crystallographica Section E , 2009, DOI: 10.1107/s160053680804289x
Abstract: The Schiff base molecule of the title compound, C15H14N2O4·C3H7NO, adopts a trans configuration with respect to the C=N double bond; the Schiff base itself is nearly planar (r.m.s. deviation 0.20 ). The amido N atom is a hydrogen-bond donor to the dimethylformamide solvate molecule. One of the hydroxy groups forms an intramolecular hydrogen bond to the N atom of the C=N double bond, whereas the other forms an intermolecular hydrogen bond to the carbonyl group.
Salicylato[tris(N-methylbenzimidazol-2-ylmethyl)amine]zinc(II) perchlorate dimethylformamide sesquisolvate
Huilu Wu,Ruirui Yun,Jian Ding,Jingkun Yuan
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536807064902
Abstract: In the title complex, [Zn(C7H5O3)(C27H27N7)]ClO4·1.5C3H7NO, the ZnII atom is five-coordinated by four N atoms from a tris(N-methylbenzimidazol-2-ylmethyl)amine ligand and one O atom from a salicylate ligand in a distorted trigonal-bipyramidal geometry (τ parameter = 0.84), with approximate molecular C3 symmetry. One dimethylformamide molecule lies on a general position and is disordered over two coplanar orientations with equal occupancy. A second dimethylformamide molecule is disordered about a twofold rotation axis.
Aqua(dimethylformamide){tris[(1-methyl-1H-benzimidazol-2-yl)methyl]amine}nickel(II) dipicrate  [cached]
Ke Li,Tao Sun,Yang Yang,Beibei Jia
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810029181
Abstract: In the title complex, [Ni(C27H27N7)(C3H7NO)(H2O)](C6H2N3O7)2, the NiII ion is coordinated in a slightly distorted octahedral coordination evironment by an NiN4O2 ligand set. The tris(N-methylbenzimidazol-2-ylmethyl)amine ligand is in a tetradentate mode while a coordinated water molecule and a dimethylformamide ligand complete the coordination. In the crystal structure, intermolecular O—H...O hydrogen bonds link the cation and one of the pictrate anions into four-component centrosymmetric clusters.
(Salicylato)[tris(1-methyl-1H-benzimidazol-2-ylmethyl)amine]copper(II) perchlorate dimethylformamide disolvate  [cached]
Huilu Wu,Ruirui Yun,Jian Ding,Jingkun Yuan
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536807061661
Abstract: In the title complex, [Cu(C7H5O3)(C27H27N7)]ClO4·2C3H7NO, the CuII ion is five-coordinated by four N atoms from the tris(1-methyl-1H-benzimidazol-2-ylmethyl)amine ligand and an O atom of the monodentate salicylate ligand. The N4O donor set defines a coordination geometry intermediate between square-pyramidal and trigonal–bipyramidal. The crystal structure is stabilized by O—H...O interactions. The atoms of the aromatic ring of the salicylate ligand are disordered over two sites of equal occupancy. In addition, one of the dimethylformamide solvent molecules is partially disordered over two positions, of approximately equal occupancy.
Page 1 /100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.